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SubjectRe: [PATCH v3 03/03]: hwrng: khwrngd derating per device
On Mon, Apr 14, 2014 at 9:06 AM, Torsten Duwe <duwe@lst.de> wrote:
>
> This patch introduces a derating factor to struct hwrng for
> the random bits going into the kernel input pool, and a common
> default derating for drivers which do not specify one.
>
> Signed-off-by: Torsten Duwe <duwe@suse.de>
>
> ---
> drivers/char/hw_random/core.c | 11 ++++++++++-
> include/linux/hw_random.h | 3 +++
> 2 files changed, 13 insertions(+), 1 deletion(-)
>
> --- linux/include/linux/hw_random.h.orig
> +++ linux/include/linux/hw_random.h
> @@ -29,6 +29,8 @@
> * @read: New API. drivers can fill up to max bytes of data
> * into the buffer. The buffer is aligned for any type.
> * @priv: Private data, for use by the RNG driver.
> + * @derating: Estimation of true entropy in RNG's bitstream
> + * (per mill).

I'll bikeshed again: this is a rating, not a *de*rating. Higher =
more confidence, at least assuming the comment is right.

--Andy


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